I'm happy to announce that I've got a working core and bootloader written for the board. Many hours and some tears have been poured into getting the basics set up. I've also created a way to debug the core in Microchip Studio, so you can step through your code. All of the source code is on GitHub, here.

Currently the only peripherals I've tested are UART and the GPIO pins. I'll be working on timers and CAN soon. I'll need to procure some CAN devices first. I'm also excited to test the ADC and DAC.